CN111920648A - Leg and foot traction force adjustable system of massage chair and control method thereof - Google Patents
Leg and foot traction force adjustable system of massage chair and control method thereof Download PDFInfo
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- CN111920648A CN111920648A CN202010940360.5A CN202010940360A CN111920648A CN 111920648 A CN111920648 A CN 111920648A CN 202010940360 A CN202010940360 A CN 202010940360A CN 111920648 A CN111920648 A CN 111920648A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 210000001699 lower leg Anatomy 0.000 claims abstract description 44
- 210000002414 leg Anatomy 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 210000003437 trachea Anatomy 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 244000309466 calf Species 0.000 description 8
- 210000004712 air sac Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0218—Drawing-out devices
- A61H1/0222—Traction tables
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0138—Support for the device incorporated in furniture
- A61H2201/0149—Seat or chair
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/164—Feet or leg, e.g. pedal
- A61H2201/1642—Holding means therefor
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Massaging Devices (AREA)
Abstract
The invention provides a leg and foot traction force adjustable system of a massage chair and a control method thereof, wherein the leg and foot traction force adjustable system comprises the following steps: a carrier; the shank massager is fixedly arranged on the bearing frame; the foot massager comprises a movable frame and a massage footrest fixedly arranged on the movable frame; the air bag system comprises an air source and an air bag assembly capable of wrapping the foot; the driving device is respectively connected with the bearing frame and the movable frame so as to drive the movable frame to linearly slide relative to the bearing frame; the current detector is used for detecting the working current value of the driving device and is connected with the driving device; the traction adjusting device comprises a device body, a parameter conversion module and a force setting module; and the control system is in communication connection with the air valve, the driving device, the current detector and the device body respectively. The invention can set the traction force of the crus, can carry out comfortable traction on the legs and the feet of a user, and improves the massage comfort level.
Description
Technical Field
The invention relates to the field of massage instruments, in particular to a leg and foot traction force adjustable system of a massage chair and a control method thereof.
Background
At present, the stretching movement of the shank massage part of the massage chair is generally mechanical, the mechanical shank massage part is provided with a sliding guide rail and an extension spring, and after a user sits on the chair, the stretching length of the shank massage part depends on the acting force of the foot of the user on the shank massage part, so that the comfort level of the shank massage part is poor.
The stretching movement of a part of the shank massage part is electrically controlled, but is completed by presetting time when the shank massage part is drawn outwards. Since the legs of the user are not of the same length, a fixed time is used to control the length of the pull-out. The result is: the feet of a user with short legs can be pulled out; the feet of a user with long legs feel that the user does not have traction feeling.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a leg and foot traction force adjustable system of a massage chair and a control method thereof, which can set the traction force of the lower leg, provide comfortable traction for the user's legs and feet, and improve the comfort of massage.
In order to solve the above technical problem, the present invention provides a leg and foot traction force adjustable system of a massage chair, comprising:
a carrier;
the shank massager is fixedly arranged on the bearing frame;
the foot massager comprises a movable frame and a massage footrest fixedly arranged on the movable frame, the movable frame is linearly and slidably arranged on the bearing frame to adjust the distance between the massage footrest and the crus massager, and the massage footrest is provided with a foot accommodating cavity which is open upwards;
the air bag system comprises an air source and an air bag assembly capable of wrapping the foot, the air bag assembly is arranged in the foot accommodating cavity and is connected with the air source through an air pipe, and the air pipe is provided with an air valve;
the driving device is respectively connected with the bearing frame and the movable frame so as to drive the movable frame to linearly slide relative to the bearing frame;
the current detector is used for detecting the working current value of the driving device and is connected with the driving device;
the traction adjusting device comprises a device body, a parameter conversion module and a force setting module, wherein the force setting module is arranged on the device body and is connected with the device body through the parameter conversion module;
and the control system is in communication connection with the air valve, the driving device, the current detector and the device body respectively.
Preferably, a foot sensor is further arranged in the foot accommodating cavity and is in communication connection with the control system.
Preferably, the air bag assembly comprises two massage air bags symmetrically arranged at two opposite sides of the foot accommodating cavity.
Preferably, drive arrangement includes motor, nut and lead screw, and the motor is established on bearing the frame, and the nut is established on the adjustable shelf, and the lead screw rotates and sets up on bearing the frame, and the one end of lead screw passes through drive assembly and is connected and with nut screw-thread fit with the motor.
Preferably, the leg and foot traction force adjustable system further comprises a limiting device, the limiting device comprises two limit sensors and an induced body, the two limit sensors are arranged on the bearing frame along the sliding direction of the movable frame, and the induced body is arranged on the movable frame and located between the two limit sensors.
Preferably, a display screen for displaying traction force information is arranged on the device body.
Preferably, the traction adjustment device further comprises a posture adjustment module connected with the device body.
The invention also provides a control method of the leg and foot traction force adjustable system, which comprises the following steps:
s1, shank traction force is set through a force setting module of the traction adjusting device, and the shank traction force is converted into a protection current value corresponding to the shank traction force through a parameter conversion module;
s2, after the feet of the user are found by the massage footrest, the control system opens the air valve to inflate the air bag component until the air bag component wraps the feet of the user;
s3, the driving device drives the movable frame to slide towards the direction far away from the shank massager, and the current detector detects the working current value of the driving device in real time;
s4, the control system obtains the working current value and the protection current value in real time, compares the working current value with the protection current value, and if the working current value is not greater than the protection current value, the control system does not send any instruction; if the working current value is larger than the protection current value, the control system sends a stop instruction to the driving device, the movable frame stops sliding, and the traction state of the crus lasts for preset traction time;
s5, the air bag module is deflated to release the foot of the user.
Preferably, the control system comprises a single chip processor and a driving chip, and the driving chip is in communication connection with the single chip processor and the driving device respectively.
Preferably, the traction preset time is 5-30 seconds.
As described above, the leg and foot traction force adjustable system of the massage chair and the control method thereof of the invention have the following beneficial effects: when the foot of the user falls into the foot containing cavity of the massage foot-resting seat, the control system controls the air valve to be opened, the air source inflates the air bag component through the air pipe, the air bag component gradually expands until the foot of the user can be restrained in the foot containing cavity, and the foot of the user is prevented from being separated from the massage foot-resting seat when the distance between the massage foot-resting seat and the shank massager is increased. The force setting module is used for setting the size of the shank traction force, and the parameter conversion module converts the shank traction force into a protection current value corresponding to the shank traction force. When the driving device drives the movable frame to slide towards the direction far away from the shank massager, the shank of the user is gradually pulled, the working current value of the driving device is gradually increased, and the current detector detects the working current value of the driving device in real time. The control system obtains and compares the working current value and the protection current value, and if the working current value is not greater than the protection current value, the control system does not send any instruction; if the working current value is larger than the protection current value, the control system sends a stop instruction to the driving device, the movable frame stops sliding, and the traction state of the crus continues for the preset traction time. After a preset traction time, the air bag assembly is deflated to release the user's foot. Therefore, the leg and foot traction force adjustable system of the massage chair can set the traction force of the legs through the traction adjusting device, so that the legs and the feet of a user can be comfortably pulled, and the massage comfort level is improved.
Drawings
FIG. 1 is a perspective view of the leg and foot traction force adjustable system of the massage chair of the present invention;
FIG. 2 is a perspective view of the foot massager;
FIG. 3 is a schematic view of the connection of the carriage, the driving device and the foot massager;
FIG. 4 is a schematic diagram showing the connections of the drive unit, current sensor, traction control unit and control system;
fig. 5 shows a schematic connection of the airbag system and the control system.
Description of the element reference numerals
1 load carrier
2 shank massager
3 foot massager
31 movable frame
32 massage foot rest
321 foot containing cavity
322 foot sensor
4 driving device
41 electric machine
42 nut
43 screw rod
44 drive assembly
5 Current detector
6 draw adjusting device
61 device body
62 parameter conversion module
63 dynamics setting module
64 position posture adjustment module
7 control system
71 single-chip processor
72 drive chip
8 air bag system
81 gas source
82 air bag module
821 massage air bag
83 air pipe
84 air valve
9 limiting device
91 limit inductor
92 inducted body
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 5, the present invention provides a leg and foot traction force adjustable system of a massage chair, comprising:
a carrier 1;
the shank massager 2, the shank massager 2 is fixedly arranged on the bearing frame 1;
a foot massager 3, the foot massager 3 comprises a movable frame 31 and a massage footrest 32 fixedly arranged on the movable frame 31, the movable frame 31 is linearly and slidably arranged on the bearing frame 1 to adjust the distance between the massage footrest 32 and the crus massager 2, the massage footrest 32 is provided with a foot containing cavity 321 which is opened upwards;
the air bag system 8, the air bag system 8 includes the air supply 81 and can wrap up the gasbag assembly 82 of the foot, the gasbag assembly 82 is set up in the foot and set up the cavity 321 of foot and connect with air supply 81 through the trachea 83, there are air valves 84 on the trachea 83;
the driving device 4 is respectively connected with the carrier 1 and the movable frame 31 so as to drive the movable frame 31 to linearly slide relative to the carrier 1;
a current detector 5 for detecting the operating current value of the driving device 4, wherein the current detector 5 is connected with the driving device 4;
the traction adjusting device 6 comprises a device body 61, a parameter conversion module 62 and a force setting module 63, wherein the force setting module 63 is arranged on the device body 61 and is connected with the device body 61 through the parameter conversion module 62;
the control system 7, the control system 7 is respectively connected with the gas valve 84, the driving device 4, the current detector 5 and the device body 61 in a communication way.
In the present invention, when the foot of the user falls into the foot receiving cavity 321 of the massage footrest 32, the control system 7 controls the air valve 84 to open, the air source 81 inflates the air bag module 82 through the air tube 83, the air bag module 82 gradually expands until the foot of the user can be restrained in the foot receiving cavity 321, and the foot of the user is prevented from being separated from the massage footrest 32 when the distance between the massage footrest 32 and the calf massager 2 is increased. The force setting module 63 is used for setting the magnitude of the calf traction force, and the parameter conversion module 62 converts the calf traction force into a protection current value corresponding to the calf traction force. When the driving device 4 drives the movable frame 31 to slide in a direction away from the calf massager 2, the calf of the user is gradually pulled, the operating current value of the driving device 4 is gradually increased, and the current detector 5 detects the operating current value of the driving device 4 in real time. The control system 7 obtains and compares the working current value and the protection current value, and if the working current value is not greater than the protection current value, the control system 7 does not send any instruction; if the working current value is larger than the protection current value, the control system 7 sends a stop instruction to the driving device 4, the movable frame 31 stops sliding, and the traction state of the lower leg is continued for the preset traction time. After a preset traction time, the bladder assembly 82 is deflated to release the user's foot. Therefore, the leg and foot traction force adjustable system of the massage chair can set the traction force of the lower leg through the traction adjusting device 6, so that the legs and the feet of a user can be comfortably pulled, and the massage comfort level is improved.
In order to make the massage footrest 32 locate the feet of the user, a foot sensor 322 is further disposed in the foot accommodating cavity 321, and the foot sensor 322 is in communication connection with the control system 7. The foot sensor 322 is capable of sensing the foot of the user, and when the foot of the user is inserted into the foot receiving cavity 321 of the massage footrest 32, the control system 7 gives a stop command to the driving device 4 to stop the sliding of the movable frame 31 with respect to the carrier frame 1, and further, the air bag module 82 starts to expand and wrap the foot of the user, so that the massage footrest 32 can pull the foot of the user in a direction away from the calf massager 2.
In order to restrain the foot of the user in the foot receiving cavity 321, the air bag module 82 includes two massage air bags 821, and the two massage air bags 821 are symmetrically disposed at opposite sides of the foot receiving cavity 321.
In order to adjust the distance between the massage footrest 32 and the calf massager 2 more precisely, the driving device 4 comprises a motor 41, a nut 42 and a screw 43, the motor 41 is disposed on the carriage 1, the nut 42 is disposed on the movable frame 31, the screw 43 is rotatably disposed on the carriage 1, and one end of the screw 43 is connected with the motor 41 through a transmission assembly 44 and is in threaded fit with the nut 42.
In order to limit the sliding range of the movable frame 31, the leg and foot traction force adjustable system further comprises a limiting device 9, the limiting device 9 comprises two limit sensors 91 and a sensed body 92, the two limit sensors 91 are arranged on the carriage 1 along the sliding direction of the movable frame 31, and the sensed body 92 is arranged on the movable frame 31 and located between the two limit sensors 91.
In order to facilitate the traction force setting, the device body 61 is provided with a display screen for displaying traction force information.
In order to adjust the posture of the massage chair (for example, the inclination angle of the backrest of the massage chair), the traction-adjusting device 6 further includes a posture-adjusting module 64 connected to the device body 61.
To facilitate control of the gas source 81, the gas source 81 may also be communicatively coupled to the control system 7.
As an example of the traction adjustment device 6 described above: traction control device 6 is for the hand controller, and device body 61 is for controlling the panel, and the inside of controlling the panel is equipped with above-mentioned parameter conversion module 62 and dynamics and sets up module 63, controls to be equipped with above-mentioned display screen on the top surface of panel, still is equipped with on the top surface of controlling the panel and sets up the button, sets up the button and is used for triggering above-mentioned dynamics and sets up module 63.
The invention also provides a control method of the leg and foot traction force adjustable system, which comprises the following steps:
s1, shank traction force is set through the force setting module 63 of the traction adjusting device 6, and the shank traction force is converted into a protection current value corresponding to the shank traction force by the parameter conversion module 62;
s2, after the massage footrest 32 locates the user 'S foot, the control system 7 activates the air valve 84 to inflate the air bladder assembly 82 until the air bladder assembly 82 wraps around the user' S foot;
s3, the driving device 4 drives the movable frame 31 to slide towards the direction far away from the shank massager 2, and the current detector 5 detects the working current value of the driving device 4 in real time;
s4, the control system 7 obtains the working current value and the protection current value in real time, compares the working current value with the protection current value, and if the working current value is not greater than the protection current value, the control system 7 does not send any instruction; if the working current value is larger than the protection current value, the control system 7 sends a stop instruction to the driving device 4, the movable frame 31 stops sliding, and the traction state of the crus continues for a preset traction time;
s5, the air bag module 82 is deflated to release the foot of the user.
The control method can set the traction force of the crus through the traction adjusting device 6, so that the legs and the feet of the user can be comfortably pulled, and the massage comfort level is improved.
Preferably, the control system 7 includes a single chip processor 71 and a driving chip 72, and the driving chip 72 is in communication connection with the single chip processor 71 and the driving device 4, respectively. The driving chip 72 is a power chip, and has a function of directly driving the driving device 4, that is, the driving chip 72 has a function of setting a driving current. Specifically, the mcu 71 transmits the analog voltage to the driving chip 72, and the driving chip 72 drives the driving device 4 to operate according to the output power corresponding to the analog voltage. The analog voltage is proportional to the output power.
In order to further improve the comfort level of leg and foot traction, the traction preset time is 5-30 seconds.
In conclusion, the leg and foot traction force adjustable system of the massage chair and the control method thereof can set the leg traction force through the traction adjusting device, so that the leg and foot of the user can be comfortably pulled, and the massage comfort level is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A system for adjusting leg and foot traction of a massage chair is characterized by comprising:
a carrier (1);
the shank massager (2), the shank massager (2) is fixedly arranged on the bearing frame (1);
the foot massager (3), the foot massager (3) comprises a movable frame (31) and a massage footrest (32) fixedly arranged on the movable frame (31), the movable frame (31) is linearly and slidably arranged on the bearing frame (1) to adjust the distance between the massage footrest (32) and the crus massager (2), and the massage footrest (32) is provided with a foot accommodating cavity (321) which is open upwards;
the air bag system (8), the air bag system (8) includes the air supply (81) and can wrap up the gasbag assembly (82) of the foot, the gasbag assembly (82) is set up in the foot and set up the lumen (321) and connect with air supply (81) through the trachea (83), there are air valves (84) on the trachea (83);
the driving device (4), the driving device (4) is respectively connected with the bearing frame (1) and the movable frame (31) to drive the movable frame (31) to linearly slide relative to the bearing frame (1);
the current detector (5) is used for detecting the working current value of the driving device (4), and the current detector (5) is connected with the driving device (4);
the traction adjusting device (6), the traction adjusting device (6) comprises a device body (61), a parameter conversion module (62) and a force setting module (63), and the force setting module (63) is arranged on the device body (61) and is connected with the device body (61) through the parameter conversion module (62);
and the control system (7), the control system (7) is respectively in communication connection with the air valve (84), the driving device (4), the current detector (5) and the device body (61).
2. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: a foot sensor (322) is further arranged in the foot accommodating cavity (321), and the foot sensor (322) is in communication connection with the control system (7).
3. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: the air bag assembly (82) comprises two massage air bags (821), and the two massage air bags (821) are symmetrically arranged at two opposite sides of the foot accommodating cavity (321).
4. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: the driving device (4) comprises a motor (41), a nut (42) and a screw rod (43), the motor (41) is arranged on the bearing frame (1), the nut (42) is arranged on the movable frame (31), the screw rod (43) is rotatably arranged on the bearing frame (1), and one end of the screw rod (43) is connected with the motor (41) through a transmission assembly (44) and is in threaded fit with the nut (42).
5. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: the leg and foot traction force adjustable system further comprises a limiting device (9), wherein the limiting device (9) comprises two limit sensors (91) and an induced body (92), the two limit sensors (91) are arranged on the bearing frame (1) along the sliding direction of the movable frame (31), and the induced body (92) is arranged on the movable frame (31) and located between the two limit sensors (91).
6. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: the device body (61) is provided with a display screen for displaying traction force information.
7. The adjustable leg and foot traction system of a massage chair as claimed in claim 1, wherein: the traction adjusting device (6) further comprises a pose adjusting module (64) connected with the device body (61).
8. A method for controlling a system with adjustable leg and foot traction according to any one of claims 1 to 7, comprising the steps of:
s1, shank traction force is set through a force setting module (63) of the traction adjusting device (6), and a parameter conversion module (62) converts the shank traction force into a protection current value corresponding to the shank traction force;
s2, after the massage footrest (32) finds the feet of the user, the control system (7) opens the air valve (84) to inflate the air bag component (82) until the air bag component (82) wraps the feet of the user;
s3, the driving device (4) drives the movable frame (31) to slide towards the direction far away from the shank massager (2), and the current detector (5) detects the working current value of the driving device (4) in real time;
s4, the control system (7) acquires the working current value and the protection current value in real time, compares the working current value with the protection current value, and if the working current value is not greater than the protection current value, the control system (7) does not send any instruction; if the working current value is larger than the protection current value, the control system (7) sends a stop instruction to the driving device (4), the movable frame (31) stops sliding, and the traction state of the crus continues for a preset traction time;
s5, the air bag module (82) is deflated to release the foot of the user.
9. The control method according to claim 8, characterized in that: the control system (7) comprises a single chip microcomputer processor (71) and a driving chip (72), and the driving chip (72) is in communication connection with the single chip microcomputer processor (71) and the driving device (4) respectively.
10. The control method according to claim 8, characterized in that: the traction preset time is 5-30 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010940360.5A CN111920648A (en) | 2020-09-09 | 2020-09-09 | Leg and foot traction force adjustable system of massage chair and control method thereof |
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| CN202010940360.5A CN111920648A (en) | 2020-09-09 | 2020-09-09 | Leg and foot traction force adjustable system of massage chair and control method thereof |
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| CN202010940360.5A Pending CN111920648A (en) | 2020-09-09 | 2020-09-09 | Leg and foot traction force adjustable system of massage chair and control method thereof |
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| CN208611073U (en) * | 2017-07-23 | 2019-03-19 | 于爱红 | A kind of adjustable towing bracket in bone surgery leg |
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